Guard for cut-off machines.



H. J. GOFF & G. M. HOFFMAN. GUARD FORCUT-OFF MACHINES, APPLICATION FILED AUG-2 19 15.

1,176,213. v Patented Mar. 21,1916.

2 SHEETSSHEET I.

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H. J. GOFF & G. M. HOFFMAN. GUARD FOR CUT-OFF MACHINES. APPLICATION FILED AUG-2, 19:5.

1 1 76 2 1 3 Patented Mar. 21, 1916.

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. HENRY JAMES corn AND GEORGE MARKHQFFMAN, or McdLOUD, CALIFORNIA.

GUARD FOB CUT-OFF MAC HINES.

Specification of Letters Patent.

Patented Mar. 21, 1916.

Application filed August 2, 1915. Serial No. 43,315.

To all whom it may concern:

Be it known that we, HENRY J. Gorr and GEORGE M. HOFFMAN, citizens of the United States, residing at McCloud, in the county of Siskiyou and State of California, have invented certain new and useful Improvements in Guards for Cut Off Machines, of.

V tually protects the operator against injury chine provided with the stationary table 2 by coming into contact with the saw.

- The invention consists in the details of construction and in the combination and arrangement of the several parts of our improved saw guard whereby certain important advantages are attained .and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use, all as will be hereinafter more fully set forth.

The novel features of the invention will be carefully defined in the appended claims.

In order that our invention may be the better understood, we will now proceed to describe the same with reference to the accompanying drawings, wherein- Figure 1 is a view partly in side elevation and partly in section, illustrating a guard constructed in accordance with an embodiment of our invention in applied position. Fig. 2 is a view in top plan of the device disclosed in Fig. 1. Fig. 3 is an enlarged view partly in elevation and partly in section of the guard. Fig. 4 is a view in top plan of the device as illustrated in Fig. 3. Fig. 5 is a view taken substantially on the line 5-5 of Fig. 3, and Fig. 6 is .a sectional view taken substantially on the line 6-6 of Fig. 3.

As disclosed in the accompanying drawings, 1 denotes the frame of a cut-0H maand the carriage 3.

4; denotes the saw which is of the circular type and adapted to be operated in any convenient manner.

5 denotes a track-way disposed along the inner edge of the table 2 and may be produced integrally therewith or suitably secured thereto and coacting with said trackway 5 is a slide 6 having suitably secured to its forward end portion a hood 7, adapted to. overlie the saw 1- and substantially incase the upper portion thereof, whereby the operator is effectively protected from injury by Contact with the saw during the sawing operation.

Projecting laterallyfrom the slide 6 ad jacent to the forward end thereof is the arm 8 which overlies the ad'jacent marginal portion of the carriage 3, and is adapted to be engaged by the upstanding pin 9, removably engaged within one of the openings 10 produced in the upper face of the carriage 3, or more particularly in the plate 11. It will be perceived that as the carriage 8 is moved in a direction toward the saw 4:, that the cont-act of the pin 9 with the arm 8 will cause the hood 7 together with the slide 6 to move rearWa-rdly so that no obstruction will be offered to the work.

After the work has been severed the hood 7 is returned to operative position relative to the saw 4 through the medium of the weighted member 12 herein disclosed as suitably secured to the flexible member 14:, disposed over the spaced guide pulleys 15, disposed below the track-way 5, one of said pulleys being positioned adjacent the for ward extremity thereof. The opposite extremity of the flexible member 14 is suitably secured, as at 16, to the forward extremity of the slide 6.

In order to limit the movement of the slide 6 under the influence of the weighted member 12, we provide said slide with the laterally disposed projection 17 adapted to contact with the upstanding projection 18, carried by the track-way 5. We also find it of advantage to provide the inner side of the trackway 5 at its inner end with the defleeting member 19, which serves to throw the severed work to one side and thus reduces to a minimum the possibility of any obstruction being offered to the return movement of the hood 7, said slide being grooved longitudinally with its outer or free end overlying the adjacent end of the slide.

From the foregoing description, it is thought to be obvious that a saw guard constructed in accordance with our invention is of an extremely simple and comparatively inexpensive nature and is particularly well adapted for use by reason of the convenience i and facility with which it may be assembled, and it Will also be obvious that our invention is susceptible of some change and modification Without material departure from the principles and spirit thereof and for this reason We do not Wish to be understood as limiting ourselves to the precise arrangement and formation of the several parts herein shown in carrying out our invention in practice.

We claim:

1. In combination With a circular saw, a stationary table disposed at one side thereof, a slidable carriage positioned adjacent the opposite side of the saw and provided With a track-Way at a point to one side of the axial center of the saw and disposed perpendicularly thereto, a slide mounted for movement Within thetrack-way, a hood carried by one extremity of the slide adapted to overlie the saW and substantially incase the upper portion thereof, a lateral extension carried by the slide and overlying the carriage, the marginal portion of the carriage moving beneath the lateral projection being provided With a plurality of spaced recesses, and a pin removably inserted within one of said recesses and engageable with the lateral projection of the slide for-mov- 7 a stationary grooved With its outer end overlying the adjacent end of the slide. g

In testimony whereof We hereunto affix our signatures in the presence of tWo Witnesses.

HENRY J AMESGOFF. GEORGE MARK HOFFMAN.

. Witnesses: V

GEO. BUXToN, W. J. MODONOGH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

